元转换为分

yuan_2_fen.php

<?php
    $a = [
        '123',
        '1.2',
        '1.23',
        '1.234',
        '1.2345',
        // 用户出问题的数据
        '1.1',
        '1.16',
    ];

    foreach($a as $v) {
        var_dump($v);
    }

    echo "\n";

    foreach($a as $v) {
        var_dump( (int)($v * 100) );
    }

    echo "\n";

    foreach($a as $v) {
        var_dump( ceil($v * 100) );
    }

    echo "\n";

    foreach($a as $v) {
        var_dump( number_format($v,2) * 100 );
    }